458 PROCEEDINGS OF THE ACADEMY OF [1893. 



with only the apex erumpent, subglobose, about 75,« diam., dark 

 colored. Sporules acicular, 12-20 x 1-1 %/jl, faintly nucleolate. 



Septoria gigaspora E. & E. 



On leaves of Celtis occidentalis, Rockport, Kansas. Sept. 2, 1893. 

 (Bartholomew, No. 1175). 



Spots amphigenous, orbicular, dirty brown, zonate, center white, 

 margin definite but irregular, grayish- brown below, i-1 cm. across. 

 Perithecia buried in the substance of the leaf, globose, 150-200;/ 

 diam., covered by the blackened epidermis which is pierced by the 

 subcorneal, perforated ostiolum. Sporules vermiform-cylindrical, 

 nearly straight, somewhat narrowed below, hyaline, granular, becom- 

 ing multiseptate, 75-100x6-8//.. 



Not to be confounded with Hendersonia celtifolia Cke., on the 

 same host. 



Septoria Medicaginis Rob. & Desm. 



The specc. of this species in Desm. Plantes Crypt, de France, No. 

 1728, have the sporules mostly 3-septate, and being without any true 

 perithecium are referable to the genus S&ptogloeum. Specimens sent 

 from Canada, by Mr. Dearness, on Medicago lupulina, agree with 

 Desm. specc. only the sporules are shorter (14-16x3//.), instead of 

 15-20x3// which is about the size of those in Desm. Exsicc. The 

 Canada specc. also have the sporules only nucleate and not distinctly 

 septate, but as nucleate spores often become septate, and as the Can- 

 ada specc. agree in other respects with those issued by Desm. as 

 Septoria Medicaginis, we have no hesitation in calliug both the same 

 thing — Septogloeum Medicaginis (Rob. & Desm.) Gloeosporium 

 Medicaginis E.& K., Journ.Mycol. , III p. 104, is probably the same 

 thing, the specc. now having the spores uniseptate. 



Myxosporium luteum E. & E. N. A. F. 2953. Fungi Columbiaui, 150. 



On bark of Carya tomentosa, Nuttallburg, West Va. June, 1893. 

 (L. W. Nuttall, No. 79). 



Stroma globose-conical, light yellow, f-1 mm. diam., slightly sunk 

 in the inner bark, unilocular and opening by a single pore. The 

 surface of the inner bark around this pore is of a pale slate color, 

 the colored portion definitely limited by a black line so as to form 

 an irregular circle about 2 mm. across, but this line does not pene- 

 trate the bark. Sporules navicular-oblong, hyaline, obtuse, 10-11 x 



